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Mathematical Problems in Engineering
Volume 2010, Article ID 124148, 13 pages
Research Article

Influence of Asymmetric Mesh Stiffness on Dynamics of Spiral Bevel Gear Transmission System

The State Key Laboratory of Mechanical Transmission, Chongqing University, Chongqing 400044, China

Received 13 January 2010; Accepted 26 March 2010

Academic Editor: Carlo Cattani

Copyright © 2010 Li Yinong et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


An 8-DOF (degrees-of-freedom) nonlinear dynamic model of a spiral bevel gear pair which involves time-varying mesh stiffness, transmission error, backlash, and asymmetric mesh stiffness is established. The effect of the asymmetric mesh stiffness on vibration of spiral bevel gear transmission system is studied deliberately with numerical method. The results show that the mesh stiffness of drive side has more effect on dynamic response than those of the coast side. Only double-sided impact region is affected considerably by mesh stiffness of coast side while single-sided impact and no-impact regions are unchanged. In addition, the increase in the mesh stiffness of drive side tends to worsen the dynamic response of the transmission system especially for light-load case.